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Limitations of stabilizing effects of fundamentalists : facing positive feedback traders

Title data

Baumann, Michael Heinrich ; Baumann, Michaela ; Erler, Alexander:
Limitations of stabilizing effects of fundamentalists : facing positive feedback traders.
In: Economics : the Open-Access, Open-Assessment E-Journal. Vol. 44 (2019) Issue 13 .
ISSN 1864-6042
DOI: https://doi.org/10.5018/economics-ejournal.ja.2019-44

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Project information

Project financing: Bundesministerium für Bildung und Forschung
Hanns-Seidel-Stiftung

Abstract in another language

The authors analyze financial interactions between chartists with bounded leverage and fundamentalists within a heterogeneous agent model, focusing on the role of fundamentalists to stabilize prices. While many related studies are solely based on simulations, the authors analytically prove that the existence of fundamentalists is insufficient to avoid asset price bubbles for a certain setup of a feedback trader model. Moreover, similar studies very often face the criticism that chartists might run out of money before the emergence of bubbles, as these studies typically analyze the role of chartists with unbounded leverage. In the work at hand, however, the authors prove that even in an environment where chartists have limited access to finance, their investment behavior can lead to exploding prices. The chartists under study are so-called positive feedback traders, whose leverage is bounded. Additionally, the authors derive upper boundaries for positive feedback traders’ initial investment necessary to avoid exploding prices. In order to stabilize stock/asset markets, intervention measures might be helpful.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Heterogeneous agents; feedback trading; fundamentalists; chartists; trend
followers; financial bubbles; financial crisis
Subject classification: JEL D84, G01, G11
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Chair Mathematics V (Applied Mathematics)
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Mathematics > Chair Mathematics V (Applied Mathematics) > Chair Mathematics V (Applied Mathematics) - Univ.-Prof. Dr. Lars Grüne)
Faculties > Faculty of Law, Business and Economics
Faculties > Faculty of Law, Business and Economics > Department of Economics
Faculties > Faculty of Law, Business and Economics > Department of Economics > Chair Economics I
Faculties > Faculty of Law, Business and Economics > Department of Economics > Chair Economics I > Chair Economics I - Univ.-Prof. Dr. Bernhard Herz
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Nonlinear Dynamics
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Forschungszentrum für Modellbildung und Simulation (MODUS)
Result of work at the UBT: Yes
DDC Subjects: 300 Social sciences > 330 Economics
500 Science > 510 Mathematics
Date Deposited: 06 Nov 2019 08:49
Last Modified: 06 Nov 2019 08:49
URI: https://eref.uni-bayreuth.de/id/eprint/53024

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